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Old   August 20, 2018, 07:45
Default Error: cell is missing face
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Yahia
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Hello everybody,
I'm meshing a half model of a serpentine (offset) duct in ICEM CFD. Initial geometry had been created in SolidWorks and then imported to ICEM CFD. The created hexahedral mesh is of a good quality and neither Error nor Possible Problem was detected during check/fix. The only problem that I face is while I import the mesh into fluent. An error of "cell is missing face" is prompted as in the attached figure. Importing any mesh rather than hexa mesh (Blocking) is going smoothly and no error prompted.
Any suggestion will be highly appreciated. Please don't hesitate to ask for any additional illustrating figures.
Best regards
Yahia

Attachment 65164

Attachment 65165

Attachment 65166
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Old   August 20, 2018, 08:43
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The attachment can not be downloaded. Please mark sure that all of geometric boundary surfaces are associated with block faces.
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Old   August 25, 2018, 07:26
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Quote:
Originally Posted by blackmask View Post
The attachment can not be downloaded. Please mark sure that all of geometric boundary surfaces are associated with block faces.
Meshing Half Model.pdf

Half Model.pdf

HM error.pdf

Dear Blackmask,
For more clarification, I'm gonna state all the steps followed during meshing as follow:
1. The geometry was imported to ICEM CFD in .igs extension.
2. Parts were created as Inlet, Outlet, Wall and Symmetry.
3. Material point was created as FLUID.
4. Topology was built using filtering angles that less than 30 degree.
5. Block was initialized and split.
6. Since the duct is offset, "extrusion along a curve" method was utilized in order to block the whole duct.
7. Vertices, edges, faces were associated to points, curves and surfaces respectively.
8. Mesh size was set on the surfaces and pre-mesh was converted to unstructured mesh.
9. Output to fluent and BC's were specified.
10. Mesh file was written to Fluent.
However while importing to fluent still error of cell is missing face prompted.

Best regards
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Old   August 27, 2018, 02:32
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Thank you for your detailed explanation. I see no problem if everything is done as you said. However, please check which surface is located near (-50.88, 165.6, -71.2) and make sure that this surface is associated with block faces. Also, make sure that ICEMCFD does not issue any warning when you export unstructured FLUENT mesh.
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Old   August 29, 2018, 05:36
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Quote:
Originally Posted by blackmask View Post
Thank you for your detailed explanation. I see no problem if everything is done as you said. However, please check which surface is located near (-50.88, 165.6, -71.2) and make sure that this surface is associated with block faces. Also, make sure that ICEMCFD does not issue any warning when you export unstructured FLUENT mesh.
Dear blackmask,
I just want to inform you that importing the mesh is done . I just tried to associate each and every single face to the geometry surfaces after O-grid generation. It seems to me that generating the O-grid will result in non-associating faces that have to be associated after.
I really appreciate your cooperation. Thanks indeed.
Best regards.
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